Silver Line - SL1 & SL3 will be detoured on Friday, July 25, from 10:30 PM until the end of service, due to the closure of I-90 West Ramp F. Inbound service will be diverted to the Sumner Tunnel. Starts Fri Jul 25 Until Sat Jul 26 Passengers can board at an additional stop at Summer St @ South Station (Red Line entrance).